EMMI Workshop: Probing the early stages with jets
KBW Lecture Hall
GSI

Jets are among the key probes of the quark-gluon plasma (QGP) produced in high-energy heavy-ion collisions at the LHC and at RHIC. As the jet cascade evolves in the presence of the underlying medium produced in these events, the partonic branchings are modified due to re-scattering with the QCD matter. Thus, by comparing these jets to those produced in pp events, one can hope to construct a tomographic picture of the medium and infer the dynamical properties of many-body QCD.
Although the QGP phase dominates the evolution in the aftermath of heavy-ion collisions, it is preceded by a shorter-lived but highly energetic out-of-equilibrium state. This medium, generated in parallel to the initial jet production, undergoes multiple (initial) stages during its equilibration process towards the QGP phase. Mapping the properties of these states using jets would give unique important information about the properties of QCD far from equilibrium, which can be hardly tested in any other experiment.
Key Goals:
- Bring together the jet quenching and the initial stages communities
- Focus on which observables can be theoretically calculated and experimentally measured
The workshop will start on Monday morning (July 13) and end on Friday after lunch (July 17).
The deadline for requesting financial support to attend the workshop is April 15.
Registration is now closed. If you would like to register and participate, please contact Kirill Boguslavski (kirill.boguslavski@subatech.in2p3.fr).
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Session: Flow and collectivty in jetsConvener: Joao Barata (CERN)
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Collective phenomena in jets – a new window into the ultimate quark-gluon dropletSpeaker: Xiaoyu Liu (Rice University)
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Elliptic Anisotropy from Quantum DiffractionSpeaker: Erik Carrió Úbeda (University of Oviedo, Spain)
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4
Flow Effects on Jet Substructure in Monte Carlo ApproachSpeaker: Joseph Bahder (Central China Normal University)
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2
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10:30 AM
Coffee break
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Session: Kinetic theory and jetsConvener: Tuomas Lappi (University of Jyväskylä)
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5
Deriving a parton shower for jet thermalization in QCD plasmasSpeaker: Adam Takacs (CERN TH)
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6
Non-equilibrium evolution of the soft sector in hadronic collisions from kinetic theorySpeaker: Clemens Werthmann (Ghent University)
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7
Azimuthal momentum isotropization in the early stagesSpeaker: Sergio Barrera Cabodevila (Heidelberg University)
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5
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12:30 PM
Lunch
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Session: Induced gluon radiationConvener: Liliana Apolinário (LIP)
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8
In-medium QCD splittings beyond the soft, large Nc, harmonic-oscillator approximations all at onceSpeaker: Marco Leitão (IPhT (FR) & LIP (PT))
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9
How the nonequilibrium initial stages influence medium-induced radiationSpeaker: Florian Lindenbauer (MIT, USA)
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8
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3:30 PM
Coffee break
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DiscussionConvener: Joao Barata (CERN)
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Social event: Welcome reception
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Session: Jets and the mediumConvener: Kirill Boguslavski (SUBATECH)
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Covariant Jet Momentum Broadening in QCD Effective Kinetic TheorySpeaker: Isabella Danhoni (UIUC)
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Jet quenching of heavy quarks in flowing QCD matterSpeaker: Matvey Kuzmin (University of Oxford)
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13
Probing coherence effects with jet formation timeSpeaker: Chiara Le Roux (Wits University, Johannesburg)
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11
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10:30 AM
Coffe break
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Session: Jets in the experimentConvener: Liliana Apolinário (LIP)
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14
What can we learn from sPHENIX about the early stagesSpeaker: Yeonju Go (Brookhaven National Laboratory)
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15
Outlook for heavy ion jet physics in the LHC Run 4 eraSpeaker: Austin Baty (University of Illinois)
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16
Measuring QGP microstructure and response to excitationSpeaker: Peter Jacobs (LBNL)
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14
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12:30 PM
Lunch
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17
EMMI, GSI and FAIRSpeaker: Carlo Ewerz (GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI))
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DiscussionConvener: Elena Bratkovskaya (GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI))
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Discussion on TuesdaySpeaker: Elena Bratkovskaya (GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI))
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18
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3:45 PM
Tea break
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GSI-FAIR Colloquium: Probing the Trillion-Degree Quark Soup
https://indico.gsi.de/event/24779/
Convener: Yen-Jie Lee (MIT)
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Session: GlasmaConvener: Kirill Boguslavski (SUBATECH)
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Glasma calculations from proper time expansionsSpeaker: Margaret Carrington (Brandon University)
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Jet quenching in glasmaSpeaker: Stanislaw Mrowczynski (National Centre for Nuclear Research)
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Jet transport coefficients in the GlasmaSpeaker: Pablo Guerrero (Universidade de Santiago de Compostela, Spain)
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19
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10:30 AM
Coffee break
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Session: Initial stages and jetsConvener: Liliana Apolinário (LIP)
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22
Determination of the leading Lyapunov exponent for the glasma fieldsSpeaker: Pooja - (University of Jyvaskyla)
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Probing the properties of strongly interacting QGP by jet partonsSpeaker: Elena Bratkovskaya (GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI))
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22
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12:30 PM
Lunch
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Session: Different approaches to jet quenchingConvener: Tuomas Lappi (University of Jyväskylä)
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25
Open quantum system approach to the transverse momentum broadening of a colour dipoleSpeaker: Pietro Benzoni (Subatech)
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Hamiltonian evolution of jets in the Glasma phaseSpeaker: Carlos Lamas Rodríguez (IGFAE-USC)
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25
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3:30 PM
Coffee break
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DiscussionConvener: Andrey Sadofyev (EHU&Ikerbasque)
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Discussion on WednesdaySpeaker: Andrey Sadofyev (EHU&Ikerbasque)
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27
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Session: Jet substructure 1Convener: Liliana Apolinário (LIP)
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Resolving QCD matter with Multipoint Energy CorrelatorsSpeaker: João M. Silva (LIP-Lisbon, IST - University of Lisbon)
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29
Probing jet-medium dynamics with higher-point energy correlatorsSpeaker: Ankita Budhraja (Nikhef)
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30
Probing the early stages with experimental jet observablesSpeaker: Yen-Jie Lee (MIT)
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28
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10:30 AM
Coffee break
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Session: Jet substructure 2Convener: Tuomas Lappi (University of Jyväskylä)
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31
Early-Time Dynamics of Heavy-Ion Collisions through Energy CorrelatorsSpeaker: Andrey Sadofyev (University of Bilbao, Spain)
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Probing QCD media with projected N-point Energy CorrelatorsSpeaker: Balbeer Singh (LIP Lisbon)
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Pinning down the vacuum baseline of jetsSpeaker: Yi Chen (Vanderbilt University)
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31
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12:40 PM
Photo
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1:00 PM
Lunch
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Session: Small systemsConvener: Joao Barata (CERN)
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Gradients all the way down: Two sources of initial state anisotropySpeaker: Oscar Garcia Montero (IGFAE (Universidade de Santiago))
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Jets in hot-and-cold nuclear matterSpeaker: Christopher McGinn (MIT, USA)
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34
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3:30 PM
Coffee break
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DiscussionConvener: Peter Jacobs (Lawrence Berkeley National Laboratory)
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Discussion on ThursdaySpeaker: Peter Jacobs (Lawrence Berkeley National Laboratory)
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36
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Social event: Dinner
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Session: Probing the medium 1Convener: Kirill Boguslavski (SUBATECH)
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Energy loss from off-shell quarks in gluon fieldsSpeaker: Ismail Soudi (Universitat Bielefeld)
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Minijet thermalisation and jet transport coefficientsSpeaker: Fabian Zhou (University of Heidelberg, Germany)
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Bulk-medium and hard-probe transport coefficients in the strongly interacting QGPSpeaker: Olga Soloveva (GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI))
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37
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10:30 AM
Coffee break
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Session: Probing the medium 2Convener: Joao Barata (CERN)
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40
Non-equilibrium Evolution of Heavy Quarkonium in the MediumSpeaker: Peter Vander Griend
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40
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DiscussionConvener: Yen-Jie Lee (MIT)
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12:30 PM
Lunch
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